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https://github.com/zephyrproject-rtos/zephyr
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bf964cdd4c
There have been long lasting confusion between net_buf and net_nbuf. While the first is actually a buffer, the second one is not. It's a network buffer descriptor. More precisely it provides meta data about a network packet, and holds the chain of buffer fragments made of net_buf. Thus renaming net_nbuf to net_pkt and all names around it as well (function, Kconfig option, ..). Though net_pkt if the new name, it still inherit its logic from net_buf. ' This patch is the first of a serie that will separate completely net_pkt from net_buf. Change-Id: Iecb32d2a0d8f4647692e5328e54b5c35454194cd Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
51 lines
994 B
C
51 lines
994 B
C
/** @file
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@brief ARP handler
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This is not to be included by the application.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __ARP_H
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#define __ARP_H
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#if defined(CONFIG_NET_ARP)
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#include <net/ethernet.h>
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#define NET_ARP_BUF(buf) ((struct net_arp_hdr *)net_pkt_ip_data(buf))
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struct net_arp_hdr {
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uint16_t hwtype; /* HTYPE */
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uint16_t protocol; /* PTYPE */
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uint8_t hwlen; /* HLEN */
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uint8_t protolen; /* PLEN */
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uint16_t opcode;
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struct net_eth_addr src_hwaddr; /* SHA */
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struct in_addr src_ipaddr; /* SPA */
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struct net_eth_addr dst_hwaddr; /* THA */
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struct in_addr dst_ipaddr; /* TPA */
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} __packed;
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#define NET_ARP_HTYPE_ETH 1
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#define NET_ARP_REQUEST 1
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#define NET_ARP_REPLY 2
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struct net_buf *net_arp_prepare(struct net_buf *buf);
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enum net_verdict net_arp_input(struct net_buf *buf);
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void net_arp_init(void);
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#else /* CONFIG_NET_ARP */
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#define net_arp_init(...)
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#endif /* CONFIG_NET_ARP */
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#endif /* __ARP_H */
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